Nonstop flight route between Dayton, Ohio, United States and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between James M. Cox Dayton International Airport (DAY), Dayton, Ohio, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 319 miles (or 513 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between James M. Cox Dayton International Airport and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about James M. Cox Dayton International Airport (DAY):

• The furthest airport from James M. Cox Dayton International Airport (DAY) is Margaret River Airport (MGV), which is located 11,296 miles (18,178 kilometers) away in Margaret River, Western Australia, Australia.
• Dayton International is separate from Dayton-Wright Brothers Airport, a municipal airport south of the city in Springboro, Ohio, also owned and operated by the City of Dayton.
• On December 17, 1936 the airport opened as the "Dayton Municipal Airport" with three 3,600-foot concrete runways and connecting taxiways.
• In 1952 the city named the airport "James M.
• The airport is owned and operated by the City of Dayton.
• James M. Cox Dayton International Airport (DAY) has 3 runways.
• A$50 million renovation of the airport's terminal building, designed by Levin Porter Associates, was completed in 1989.
• The closest airport to James M. Cox Dayton International Airport (DAY) is Wright-Patterson Air Force Base (FFO), which is located only 11 miles (17 kilometers) ESE of DAY.
• The airport began a multi-year project in October 2006 to the perimeter roadway network to provide access around the airfield and to enhance safety by eliminating vehicle crossing of runways and taxiways.

Facts about St. Louis Regional Airport (ALN):

• St. Louis Regional Airport (ALN) has 2 runways.
• The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
• The 2,250 acres airfield sits at 544 ft MSL.
• Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.